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Showing 1 - 20 results of 1,056 for search '"birds"', query time: 0.47s Refine Results
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    ... with middle-aged petrels. Birds that skipped breeding were as able as breeders to release LH after a GnRH...
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    ... gland tissues of a diseased northern fulmar (Fulmarus glacialis), a pelagic bird beached in San...
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    by Soucek, Z., Mushin, Rose
    Published 1970
    ... the effect of diet on the composition of the intestinal flora of the birds and mammals examined....
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    ... to reconstruct the phylogeny of vertebrates, namely birds. We determined the concentrations of the 67 most...
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    ...Influenza A (H5N1) virus infects a variety of animals, birds and humans. Present ongoing epidemic...
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    ...Cranial morphology in birds is thought to be shaped by adaptive evolution for foraging performance...
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    ... bird (including seabirds, ducks, divers and grebes) and nine ecological guilds. We demonstrate a worked...
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    ...Migrant birds have been trapped on the island of Helgoland (southeastern North Sea) since 1909...
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    ... in sera collected from poultry and from wild birds in the northern area of the USSR. More of the sera...
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